Green algae, Euglena, Dinoflagellate, Euglenozoans
1) Green algae: rigid cell wall
Green algae have a rigid cell wall which is made of cellulose.
Euglena: flexible cell wall
It has flexible cell wall which has pellicle ( envelope) and it allows to change shape.
2) Dinoflagellate: cell wall made up rigid cell plates
Dinoflagellate have a cell wall made up of rigid cellulose plates.
Euglenozoans: flexible cells
Euglenozoans therefore can change shape.
3) Green algae has chloroplasts which is same pigment used in plants that contain chlorophyll a and b that gives bright green color